Github user ramkrish86 commented on a diff in the pull request:
https://github.com/apache/flink/pull/1821#discussion_r58191031
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/expressions/ExpressionParser.scala
---
@@ -59,6 +59,8 @@ object ExpressionParser extends JavaTokenParsers with
PackratParsers {
Literal(str.toInt)
} else if (str.endsWith("f") | str.endsWith("F")) {
Literal(str.toFloat)
+ } else if (str.endsWith(".")) {
--- End diff --
@tillrohrmann
This '.' related change I think I need more time to understand how this
parser works. So for this PR can i only handle the string concat part. I have
ensured that 42+a+b or a + b + 42 works fine.
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